Steel skeleton construction for concrete buildings.



No.859,-8-58. PATENTED JULY 9, 1907.

; 0, A. P. TURNER. STEEL SKELBTONNONSTRUOTION FOR CONCRETE BUILDING.

APPLIOATIOH IILED JAN. 23. 19.05.

. CLAUDE A. P. TURNER, OF MINNEAPOLIS, MINNESOTA.

STEEL SKELETON CONSTRUCTION FOR CONCRETE FUILDINGS Specification of Letters Patent.

Patented July 9, 1907.

Application filed January 23, 14505. Serial No- 242,431.

To all whom it mag) concern:

Be it known that I, CLAUDE A. P. TURNER, of

Minneapolis, county of Hennepin, and State of Minnesota, have inventedcertain new and useful Improvements in Steel Skeleton Construction for Concrete Buildings, of which the following is a full, clear, and exact description, reference being bad to the accompanying drawing, which constitutes a part of this specification.

My invention relates to steel and concrete constructions, and in particular to the construction of steel skeleton columns to be embedded in and incased by concrete.

Referring to the drawing, Figure l is a fragmentary view in elevation of st: 7 and concrete columns embodying my invention, shown as supporting a concrete floor slab; Fig. 2 is a vertical section on the line 22 of bars a, transverse bars or plates b and octagonal bands c, which parts are perforated or pierced to receive connecting rivets. In constructing my column, I arrange the angle bars in pairs, using four pairs, one pair of angle bars being diametrically opposite another, and

I connect such pairs by suitably spaced transverse bars or plates 1), the ends of the bars or plates being riveted together by rivets 01-. As there are four sets or pairs of angle bars, and the sets orpairs are equally spaced apart,

it will be seen that the connecting bars or plates b are staggered, alternating plates b extendgng at right angles, The octagonal bands cinclose the groups of angle bars, and are riveted thereto at the points where the transverse plates b are located. The steel skeleton column is inclosed in concrete, and in erecting it inclosing column forms are employed in which the concrete (cement, crushed rock; sand and water) is molded to the desired form in cross section. The floor slab f shown in Fig. l is molded and is supported by the colum'ns, but, as the construction of the floor slab constitutes no part of the present invention, it is not necessary to describe the same.

What I claim as new and desire to secure by Letters Patent is:

those of another pair, plates riveted to and connecting op:

posite pairs of saidbars, alternate plates being staggered or extending at right-angles to each other, and bands 0 encircling the vertical bars at intervals.

2. In steel skeleton construction, the combination of four sets of vertical angle bars arranged in opposite pairs, flange to flange, and with flanges extending in opposite directions, transverse plates extending from one pair of angle bars to the opposite pair, alternate plates being staggered and bands encircling the angle bars and riveted to the flanges thereof that extend in opposite directions. CLAUDE A. P. TURNER. Witnesses: F. A. CAMP,

H. C. VAN BOOSKIRK. 

